diff --git a/vl.c b/vl.c
index c6c6a6b..fb04b25 100644
--- a/vl.c
+++ b/vl.c
@@ -718,6 +718,14 @@ static void qemu_rearm_alarm_timer(struct 
qemu_alarm_timer *t)
 
 static struct qemu_alarm_timer *alarm_timer;
 
+static int notimer_start_timer(struct qemu_alarm_timer *t)
+{
+    return 0;
+}
+static void notimer_stop_timer(struct qemu_alarm_timer *t)
+{
+}
+
 #ifdef _WIN32